{"id":"91a2c315-9ee6-4052-a853-6f6a8238f90d","title":"Findstr GPP Passwords","description":"Look for the encrypted cpassword value within Group Policy Preference files on the Domain Controller. This value can be decrypted with gpp-decrypt.","author":"frack113","status":"test","level":"high","date":"2021-12-27","modified":"2023-11-11","tags":["attack.credential-access","attack.t1552.006"],"technique_ids":["T1552.006"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.006/T1552.006.md#atomic-test-1---gpp-passwords-findstr"],"source_path":"rules/windows/process_creation/proc_creation_win_findstr_gpp_passwords.yml","source_sha256":"918588cd1f98a01092dee6b4a0d5136cba6543a44fcf7c375e3ae1a64920c71c","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_findstr_gpp_passwords.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Findstr GPP Passwords\nid: 91a2c315-9ee6-4052-a853-6f6a8238f90d\nstatus: test\ndescription: Look for the encrypted cpassword value within Group Policy Preference files on the Domain Controller. This value can be decrypted with gpp-decrypt.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.006/T1552.006.md#atomic-test-1---gpp-passwords-findstr\nauthor: frack113\ndate: 2021-12-27\nmodified: 2023-11-11\ntags:\n    - attack.credential-access\n    - attack.t1552.006\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith:\n              - '\\find.exe'\n              - '\\findstr.exe'\n        - OriginalFileName:\n              - 'FIND.EXE'\n              - 'FINDSTR.EXE'\n    selection_cli:\n        CommandLine|contains|all:\n            - 'cpassword'\n            - '\\sysvol\\'\n            - '.xml'\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: high\nregression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_findstr_gpp_passwords/info.yml\nsimulation:\n    - type: atomic-red-team\n      name: GPP Passwords (findstr)\n      technique: T1552.006\n      atomic_guid: 870fe8fb-5e23-4f5f-b89d-dd7fe26f3b5f\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1552.006","id":"T1552.006","name":"Group Policy Preferences","page":"techniques/enterprise/T1552.006/"}],"data_path":"data/detection-rules/91a2c315-9ee6-4052-a853-6f6a8238f90d.json","kind":"sigma"}